Answer:
20
Step-by-step explanation:
Because it is a square table, that means all the sides are even. And to find the area, we do Height * Base. But again, because they're even, we would just need to find 2 numbers that multiply to be 400. And that number, is 20. 20 * 20 = 400. So the length of one side is 20.
Answer:
using Gaussian elimination method of matrix
X + 2 = 6.2
subtract 2 from both sides
x = 4.2
8, the answer needs to be more than a certain amount of characters.
